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This article applies to the following:
BlackBerry® Java Development Environment (JDE) 4.0.2
BlackBerry Device Simulators 4.0.2.x
Mobile Data Service Simulator
The Mobile Data Service Simulator included with BlackBerry JDE 4.0.2 contains a known issue that can prevent an application from pushing data to a BlackBerry Device Simulator.
Every time you want to use either a BlackBerry Device Simulator or the Mobile Data Service Simulator, browse to any web page using the BlackBerry Browser, and then execute the push to the simulator.